X-Ray Studies of 2-Methyl-2-Propanol Solution in Cyclohexane

Abstract

Changes in the mean least intermolecular distances in a solution of 2-methyl-2-propanol in cyclohexane with increasing concentration of the former were found to be non-linear. Both in the range of low (0.005–0.04 molar fraction) and high (0.45–0.75 molar fraction) concentrations of the solutions studied local maxima of the mean least intermolecular distance were observed. In the range from 0.8 to 1 molar fraction the value of this parameter remained constant. Results obtained in this work prove the absence of the specific structural properties of a low concentration alcohol solution observed in other solvents. The occurrence of the local maxima proves that cyclohexane is a non-active solvent. Owing to this the molecules of the solute and the solvent assume positions ensuring homogeneity of the solvents.

Key Words:

• X-ray diffraction
• intermolecular interactions
• intermolecular distances